[Ffmpeg-devel] Mac OS X h264 playback broken?
Tue Oct 3 19:53:18 CEST 2006
So, I'm new to this list, so be kind.
Using my intel macbook, I was running the h264 decoder to play an
ipod compatible video using ffplay. This was working great. So then
I tried using the rtp streaming stuff to play back a video streamed
via darwin streaming server. This didn't work. So I look at the
code, realize that the h264 transport protocol isn't supported by the
version of rtp in the library. Great, so I write that code. Then,
just as I get everything mostly working, in a fit of madness, I check
out all the latest code (overwriting my stuff, which was probably a
month or so old).
Now when I play h264 video file, it no longer works (this is without
streaming). No problem, I think- I broke something. I check out a
fresh new copy of the code, and get the same result- a black screen
(audio is still working). Various other videos yield the same
result; all tested videos worked before.
Okay, so something is broken in the library, it's probably a
byteswapping issue, because it works on my G4- right?
So I check out a fresh clean copy of ffmpeg, and compile it on the
G4. It runs and plays the video, but it is Blue. My people look
like Smurfs. It appears that it is putting the YUV image directly to
the screen, without converting it to RGB. I look at the code, and it
is using SDL YUV overlays. Has anyone seen this? Is it an FFMPEG
issue or a SDL issue?
So, essentially, I have two problems:
1) h264 Video Playback is Broken on Intel MacBooks (Black Screen).
2) h264 Video Playback is Broken on Mac G4 (Appears that YUV image is
being blitted to screen; or could be an endian issue).
The good news is, that if anyone can help me figure these two out, I
can debug and post my h264 streaming via rtsp code, which is pretty
clean and plays well with others... (Which I am testing against
Darwin Streaming Server).
MacBook Pro: 1.84Ghz Dual Core, 10.4.8 (8L2127) (Prerelease)
PowerMac G4, Dual 1 GHz, 10.4.7
Thanks for any advice and/or pointers!
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